McIDAS images of GOES-11 0.65 Âµm visible channel data (above) revealed the southern edge of the ice in the Beaufort Sea (north of Alaska and Canada’s Yukon and Northwest Territories) on 18 August 2010.

A closer view using a 1-km resolution NOAA-18 AVHRR false color Red/Green/Blue (RGB) image (below) showed that the ice coverage was very spotty over the Beaufort Sea, even well to the north of the well-defined southern ice edge.